Edwaed wilhelm



(Nomaden E. WILHELM.

LOGOMOTIVE HEAD LIGHT.

Patented Aug. 1, 1882.

N. PEYERS. PnahrLithagmpher. washngmn. n. C.

IINTTED STATES PATENT OFFICE.

EDWARD WILHELM, OF BUFFALO, YORK.

LoooMoTlvi-z HEAD-LIGHT.

SPECIFICATION forming part of Letters Patent No. 262,169, dated August 1, 1882.

Application led June 24, 1882.

To all whom tt may concern:

Be it known that I, EDWARD WILHELM, of the city of' Buffalo, in the county of Erie and State of New York, have invented a new and useful Improvement in Locomotive Head- Lights, of' which the following is a specification.

This invention relates to an improvement in that class of head-lights which are provided with signal plates or lenses in the sides of the head-light case; and the object of the invention is to illuminate such signal-plates in a simple and efficient manner, so that the signals can be readily observed at night.

Heretofore these signal-plates have been illuminated in various ways, with more or less success, either by direct light thrown upon the signal-plates through openings in the reflector on both sides of the lamp, or by the light which is emitted throughthe chimney-opening of the reflector, and which diffuses itself in the upper portion of the head-light case, and also by light reflected backwardly from the front end of the head-light case.

My invention consists in constructing the reflector with an opening at or near its apex behind the lamp, whereby light is emitted backwardly into the head-light case, where it diffuses itself' and may be utilized for illuminating the signal plates or lenses applied to the head-light case; also, in providing such case and reflector with an auxiliary reflector which deflects the light emitted backwardly through the openings in the main reflector, and directs such light upon the signals which arc desired to be illuminated.

In the accompanying drawings, Figure l represents a vertical longitudinal section of' a head-light provided with my improvement, the plane of' section being indicated by line 00 Fig. 2. Fig. 2 is a horizontal section inline :y ya 1.

v Like letters of reference refer to like parts in both figures.

A represents the head-light case, B thek glass arranged in the front plate thereof, C the main reflector, D the burner, E the oillreservoir, and F the chimney, all constructed (No model.)

and arranged in any suitable and well-known manner.

Gr represents an opening or aperture formed in the rear .portion of the reflector C behind the burner D, and about in line therewith, so that the aperture G is covered or hidden by the burner and chimney, and not visible from the front to any considerable extent.

H represents a reflector arranged in the rear of' the main reflector G, and constructed to divide the light which is emitted backward] y th rough the opening G, and to deflect such light laterally toward both sides of the head-light case. This reflector may be composed of two plane reflectors arranged at an angle to each other, as represented in the drawings; or it may be made curved, convex, or conical, or of any other suitable form, so as to deflect a sufcient quantity of light to properly7 illuminate the signal-plates I. rIhe latter are preferably arranged in line with the burner D and reflector H, as represented in the drawings; but they maybe arranged above or below the burner, in which case the reflector H is shaped so as to deflect the light in the proper direction to illuminate these signal-plates. The same result may be attained, but in a less satisfactory manner, by omitting the reflector H and painting the interior of the headlight case white, so that the light which is emitted through the opening G will be diffused in the head-light case and serve to illuminate the signal-plates I.

As the opening G lies directly behind the burner and is hidden by the same, it does not interfere with the illuminating power of the reflector, as openings in the sides of the reflector will do. rlhe light emitted through this opening is more intense than that which is emitted by the chimney-opening, and not liable to be obscured when the upper portion of the chimney becomes covered with smoke or soot, which happens occasionally, and materially interferes with the illumination of the signal-plates. The openin g G may also be used for lighting the lamp.

I claim as my inventionl. In a head-light, a reflector provided with an opening arranged behind the burner, wherebehind the burner, and au auxiliary reeetor, by light is emitted baekwardly into the headwhereby thelightemitted baekwardly through xo lightI case for' illuminating signal plates or such opening is directed toward the signal lenses applied to said ease, substantially as plates or lenses, substantially as set forth. 5 set forth. EDWARD WILHELM.

2. The combination, with a headlight ease, Titnesses: provided with signal plates or lenses7 of a re- JNO. J. BONNER, Hector constructed with au opening arranged CHAS. F. GEYER. 

